Citazione APA

Λιγγρής, Ν., & Βέμπερ, Κ. (1989). Ωmega english learner's dictionary: For speaker's of greek. [Athens]: Ωmega ELT Publications.

Stile di citazione Chicago

Λιγγρής, Νίκος, e Κλειώ Βέμπερ. Ωmega English Learner's Dictionary: For Speaker's of Greek. [Athens]: Ωmega ELT Publications, 1989.

Citazione MLA

Λιγγρής, Νίκος, e Κλειώ Βέμπερ. Ωmega English Learner's Dictionary: For Speaker's of Greek. [Athens]: Ωmega ELT Publications, 1989.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.